Abstract
Numerical calculations and laboratory experiments were conducted in order to understand the run-up and mixing of internal waves over a sloping boundary. The numerical model employs the CIP method to reduce the numerical diffusion. The κ-ε model was also used to explain the turbulent viscosity effect. Experiments were carried out in a two-dimensional wave tank with a horizontal-flap type wavemaker. A fluid consisting of fresh water and salt water was prepared to imitate the density stratified coastal ocean. An image processing technique was used to reveal the propagation and mixing of internal waves. The displacement and the mixing of internal waves were well predicted by the present numerical model.
